protected internal void RemoveChildItem(ProjectItem item)
{
if (item == null)
{
throw new ArgumentNullException();
}
int index = this.IndexOfChildItem(item);
if (index == -1)
{
throw new ArgumentException();
}
item.SetParent(null);
this._childItems.RemoveAt(index);
}
protected void InsertChildItem(int index, ProjectItem item)
{
if (item == null)
{
throw new ArgumentNullException();
}
if (this._childItems == null)
{
if (index != 0)
{
throw new ArgumentOutOfRangeException();
}
this._childItems = new ArrayList();
}
this._childItems.Insert(index, item);
item.SetParent(this);
}
protected internal void AddChildItem(ProjectItem item)
{
if (item == null)
{
throw new ArgumentNullException();
}
if (this._childItems == null)
{
this._childItems = new ArrayList();
}
this._childItems.Add(item);
item.SetParent(this);
}
